import time
from datetime import datetime, timedelta
from flask import render_template, request, current_app, session, redirect, g, jsonify, abort
from info.utils.image_storage import storage
from info.utils.response_code import RET
from info.utils.common import user_login_data
from . import admin_blu
from info.models import User, News, Category
from info import constants, db


@admin_blu.route('/news_type', methods=["GET", "POST"])
@user_login_data
def news_type():
    """
    新闻分类的数据展示&新闻的分类修改和添加
    :return:
    """
    # 获取所有的分类数据
    if request.method == "GET":
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_type.html', errmsg="查询数据错误")

        categories_dic_list = []

        for category in categories:
            # 获取字典
            cate_dict = category.to_dict()
            categories_dic_list.append(cate_dict)

        categories_dic_list.pop(0)
        data = {
            "categories": categories_dic_list,
        }
        # 返回内容
        return render_template('admin/news_type.html', data=data)

    # 新增或修改分类
    # 去参数
    cname = request.json.get("name")
    cid = request.json.get("id")

    if not cname:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    if cid:
        try:
            cid = int(cid)
            category = Category.query.get(cid)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
        if not category:
            return jsonify(errno=RET.NODATA, errmsg="未查询到分类数据")
        category.name = cname
    else:
        category = Category()
        category.name = cname
        db.session.add(category)

    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route('/news_edit_detail', methods=["GET", "POST"])
@user_login_data
def news_edit_detail():
    """
    新闻编辑详情
    :return:
    """
    if request.method == "GET":
        # 获取参数
        news_id = request.args.get("news_id")

        if not news_id:
            abort(404)
            return render_template('admin/news_edit_detail.html', data={"errmsg": "未查询到此新闻"})

        # 查询新闻
        news = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)

        if not news:
            return render_template('admin/news_edit_detail.html', data={"errmsg": "未查询到此新闻"})

        # 查询分类的数据
        categories = Category.query.all()
        categories_li = []
        for category in categories:
            c_dict = category.to_dict()
            c_dict["is_selected"] = False
            if category.id == news.category_id:
                c_dict["is_selected"] = True
            categories_li.append(c_dict)
        # 移除`最新`分类
        categories_li.pop(0)

        data = {"news": news.to_dict(), "categories": categories_li}
        return render_template('admin/news_edit_detail.html', data=data)
    # 取到post进来的数据
    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")
    if not all([title, digest, content, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到新闻数据")

    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

            # 2. 将标题图片上传到七牛
        try:
            key = storage(index_image)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    # 3. 设置相关数据
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id

    # 5. 返回结果
    return jsonify(errno=RET.OK, errmsg="编辑成功")


@admin_blu.route('/news_edit', methods=["GET", "POST"])
@user_login_data
def news_edit():
    """
    新闻编辑
    :return:
    """
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", "")
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    news_list = []
    current_page = 1
    total_page = 1
    try:

        filters = [News.status == 0]
        if keywords:
            filters.append(News.title.contains(keywords))
        paginate = News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page,
                                                                                          constants.ADMIN_USER_PAGE_MAX_COUNT,
                                                                                          False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
    # 将模型列表转成字典列表
    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())
    # print(news_dict_list)
    data = {
        "total_page": total_page,
        "current_page": current_page,
        "news_list": news_dict_list
    }
    return render_template('admin/news_edit.html', data=data)


@admin_blu.route('/news_review_detail', methods=["GET", "POST"])
@user_login_data
def news_review_detail():
    """
    新闻审核
    :return:
    """
    if request.method == "GET":
        news_id = request.args.get("news_id")
        if not news_id:
            return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})
        news = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)

        if not news:
            return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

        data = {
            "news": news.to_dict()
        }
        return render_template('admin/news_review_detail.html', data=data)

    # 执行审核操作

    # 获取参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")

    # 判断参数
    if not all([news_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if action not in ("accept", "reject"):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    news = None
    try:
        # 查询新闻
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到数据")

    # 根据不同的状态设置不同的值
    if action == "accept":
        news.status = 0
    else:
        # 拒绝通过，需要获取原因
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
        news.reason = reason
        news.status = -1

    return jsonify(errno=RET.OK, errmsg="操作成功")


@admin_blu.route('/news_review', methods=["GET", "POST"])
@user_login_data
def news_review():
    """
    新闻审核列表
    :return:
    """
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", "")
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    news_list = []
    current_page = 1
    total_page = 1
    try:

        filters = [News.status != 0]
        if keywords:
            filters.append(News.title.contains(keywords))
        paginate = News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page,
                                                                                          constants.ADMIN_USER_PAGE_MAX_COUNT,
                                                                                          False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
    # 将模型列表转成字典列表
    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())
    # print(news_dict_list)
    data = {
        "total_page": total_page,
        "current_page": current_page,
        "news_list": news_dict_list
    }
    return render_template('admin/news_review.html', data=data)


@admin_blu.route('/user_list', methods=["GET", "POST"])
@user_login_data
def user_list():
    """
    用户列表
    :return:
    """
    page = request.args.get("p", 1)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    users = []
    current_page = 1
    total_page = 1
    try:
        paginate = User.query.filter(User.is_admin == False).order_by(User.last_login.desc()).paginate(page,
                                                                                                       constants.ADMIN_USER_PAGE_MAX_COUNT,
                                                                                                       False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

        # 将模型列表转成字典列表
    users_list = []
    for user in users:
        users_list.append(user.to_admin_dict())

    data = {
        "total_page": total_page,
        "current_page": current_page,
        "users": users_list
    }
    return render_template('admin/user_list.html', data=data)


@admin_blu.route('/user_count', methods=["GET", "POST"])
@user_login_data
def user_count():
    """
    用户折线图
    :return:
    """
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    mon_count = 0
    t = time.localtime()
    begin_mon_date = datetime.strptime(('%d-%02d-01' % (t.tm_year, t.tm_mon)), '%Y-%m-%d')
    try:
        mon_count = User.query.filter(User.is_admin == False, User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), '%Y-%m-%d')
    try:
        day_count = User.query.filter(User.is_admin == False, User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 折线图数据
    active_time = []
    active_count = []
    begin_today_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), '%Y-%m-%d')
    for i in range(0, 31):
        begin_data = begin_today_date - timedelta(days=i)
        end_data = begin_today_date - timedelta(days=(i - 1))
        begin_today_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), '%Y-%m-%d')
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_data,
                                  User.last_login < end_data).count()
        active_count.append(count)
        active_time.append(begin_data.strftime('%Y-%m-%d'))

    active_time.reverse()
    active_count.reverse()
    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time": active_time,
        "active_count": active_count
    }
    return render_template('admin/user_count.html', data=data)


@admin_blu.route('/index', methods=["GET", "POST"])
@user_login_data
def index():
    """
    管理员主页
    :return:
    """
    user = g.user
    data = {
        "user": user.to_dict(),
    }
    return render_template('admin/index.html', data=data)


@admin_blu.route('/login', methods=["GET", "POST"])
def login():
    """
    登录
    :return:
    """
    if request.method == "GET":
        user_id = session.get("user_id", None)
        is_admin = session.get("is_admin", False)
        if user_id and is_admin:
            time.sleep(2)
            return redirect("/admin/index")

        return render_template("admin/login.html", errmsg="")

    username = request.form.get("username")
    password = request.form.get("password")

    if not all([username, password]):
        return render_template('admin/login.html', errmsg="参数错误")
    try:
        user = User.query.filter(User.mobile == username, User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg="用户信息查询失败")
    if not user:
        return render_template('admin/login.html', errmsg="未查询到用户信息")

    if not user.check_passowrd(password):
        return render_template('admin/login.html', errmsg="用户名或密码错误")

    session["user_id"] = user.id
    session["nick_name"] = user.nick_name
    session["mobile"] = user.mobile
    session["is_admin"] = True

    return redirect("/admin/index")
